A question about parallel computation

[Yin Feng]

I tried OpenMPI build PETSc and used mpirun provided by OpenMPI.
But, when I check the load on each node, I found the master node take
all the load
and others are just free.

Did you have any idea about this situation?

Thanks in adcance!

Sincerely,
YIN

On Wed, Jul 8, 2009 at 1:26 PM, Satish Balay<balay at mcs.anl.gov> wrote:
> Perhaps you are using the wrong mpiexec or mpirun. You'll have to use
> the correspond mpiexec from MPI you've used to build PETSc.
>
> Or if the MPI has special instruction on usage - you should follow
> that [for ex: some clusters require extra options to mpiexec ]
>
> Satish
>
> On Wed, 8 Jul 2009, Yin Feng wrote:
>
>> I am a beginner of PETSc.
>> I tried the PETSC example 5(ex5) with 4 nodes,
>> However, it seems every nodes doing the exactly the same things and
>> output the same results again and again. is this the problem of petsc or
>> MPI installation?
>>
>> Thank you in adcance!
>>
>> Sincerely,
>> YIN
>>
>
>